I just finished rewiring our JD mower last night. There are no more safety switches, you turn the key, it starts.
Previously, there were safety switched for the pto, seat, clutch, etc... The connections are corroded and I was tired of screwing with it constantly...
The wire going to the coils should never have positive voltage hooked up to it, it will melt down... You ground this out to kill the spark - my notes in the top left are incorrect in this regard...
This is what happens if you hook up 12v to the coil...
Also, arns equipment is cheaper and better to deal with than EJ Mower and can get you aftermarket parts.